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k1 pixel shift - can you see the different?

Started 4 months ago | Discussions thread
James O'Neill Veteran Member • Posts: 6,117
Re: k1 pixel shift - can you see the different?

JeremieB wrote:

Pixel shift of course may have an effect on details, but that depends a lot on overall sharpness of the scene (lens vs sensor etc).

But pixel shift has a definitive effect on reducing noise, as you take the mean of 4 captures instead of just 1.

I have never understood HOW this works. I've done tests to show that it DOES work.

If you have PS off, a pixel is might be Red, Green or Blue.  The other colours are made up the average of the neighbours with that colour.

But you have PS on there is a single reading for Red and Blue and two for green each site.  There should be less averaging with PS.  (Unless each image is demozaiced and the 4 are averaged, but that would reduce resolution)

There's more light captured, so there should be less noise, but I can't get my head round the mechanism, unless it the extra data playing a role in NR.

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